Prevents Mithrix Phase 1/3 skipping by putting him in an 'inactive state' when standing on his head. When standing directly on Mithrix's head, the distance the AI calculates between targets becomes negative and the AI is unable to act since the AI's "minimum distance" to activate abilities is 0 and doesn't account for negative values.
This mod is a general fix for all cases this could happen but it's most prevalent against Mithrix. For more information check out Cap's video
1.0.0